content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -------------------------
   * FastScatterPlotTests.java
   * -------------------------
   * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 18-Mar-2003 : Version 1 (DG);
   * 29-Jan-2009 : Updated testEquals() (DG);
   * 26-Mar-2009 : Updated testEquals() for new panning fields (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import org.jfree.chart.JFreeChart;
  import org.jfree.chart.axis.NumberAxis;
  import org.jfree.chart.axis.ValueAxis;
  import org.junit.jupiter.api.Test;
  
  import java.awt.BasicStroke;
  import java.awt.Color;
  import java.awt.GradientPaint;
  import java.awt.Stroke;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  import static org.junit.jupiter.api.Assertions.assertSame;
  
  /**
   * Tests for the {@link FastScatterPlot} class.
   */
  public class FastScatterPlotTest  {
  
  
  
  
  
      /**
       * Some checks for the equals() method.
       */
      @Test
      public void testEquals() {
  
          FastScatterPlot plot1 = new FastScatterPlot();
          FastScatterPlot plot2 = new FastScatterPlot();
          assertEquals(plot1, plot2);
          assertEquals(plot2, plot1);
  
          plot1.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED,
                  3.0f, 4.0f, Color.yellow));
          assertFalse(plot1.equals(plot2));
          plot2.setPaint(new GradientPaint(1.0f, 2.0f, Color.RED,
                  3.0f, 4.0f, Color.yellow));
          assertEquals(plot1, plot2);
  
          plot1.setDomainGridlinesVisible(false);
          assertFalse(plot1.equals(plot2));
          plot2.setDomainGridlinesVisible(false);
          assertEquals(plot1, plot2);
  
          plot1.setDomainGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE,
                  3.0f, 4.0f, Color.yellow));
          assertFalse(plot1.equals(plot2));
          plot2.setDomainGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.BLUE,
                  3.0f, 4.0f, Color.yellow));
          assertEquals(plot1, plot2);
  
          Stroke s = new BasicStroke(1.5f);
          plot1.setDomainGridlineStroke(s);
          assertFalse(plot1.equals(plot2));
          plot2.setDomainGridlineStroke(s);
          assertEquals(plot1, plot2);
  
          plot1.setRangeGridlinesVisible(false);
          assertFalse(plot1.equals(plot2));
          plot2.setRangeGridlinesVisible(false);
          assertEquals(plot1, plot2);
  
          plot1.setRangeGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.green,
                  3.0f, 4.0f, Color.yellow));
          assertFalse(plot1.equals(plot2));
          plot2.setRangeGridlinePaint(new GradientPaint(1.0f, 2.0f, Color.green,
                  3.0f, 4.0f, Color.yellow));
          assertEquals(plot1, plot2);
  
          Stroke s2 = new BasicStroke(1.5f);
          plot1.setRangeGridlineStroke(s2);
          assertFalse(plot1.equals(plot2));
          plot2.setRangeGridlineStroke(s2);
          assertEquals(plot1, plot2);
  
          plot1.setDomainPannable(true);
          assertFalse(plot1.equals(plot2));
          plot2.setDomainPannable(true);
          assertEquals(plot1, plot2);
  
          plot1.setRangePannable(true);
          assertFalse(plot1.equals(plot2));
          plot2.setRangePannable(true);
          assertEquals(plot1, plot2);
  
      }
  
      /**
       * Some tests for the data array equality in the equals() method.
       */
      @Test
      public void testEquals2() {
          FastScatterPlot plot1 = new FastScatterPlot();
          FastScatterPlot plot2 = new FastScatterPlot();
          assertEquals(plot1, plot2);
          assertEquals(plot2, plot1);
  
          float[][] a = new float[2][];
          float[][] b = new float[2][];
          plot1.setData(a);
          assertFalse(plot1.equals(plot2));
          plot2.setData(b);
          assertEquals(plot1, plot2);
  
          a[0] = new float[6];
          assertFalse(plot1.equals(plot2));
          b[0] = new float[6];
          assertEquals(plot1, plot2);
  
          a[0][0] = 1.0f;
          assertFalse(plot1.equals(plot2));
          b[0][0] = 1.0f;
          assertEquals(plot1, plot2);
  
          a[0][1] = Float.NaN;
          assertFalse(plot1.equals(plot2));
          b[0][1] = Float.NaN;
          assertEquals(plot1, plot2);
  
          a[0][2] = Float.POSITIVE_INFINITY;
          assertFalse(plot1.equals(plot2));
          b[0][2] = Float.POSITIVE_INFINITY;
          assertEquals(plot1, plot2);
  
          a[0][3] = Float.NEGATIVE_INFINITY;
          assertFalse(plot1.equals(plot2));
          b[0][3] = Float.NEGATIVE_INFINITY;
          assertEquals(plot1, plot2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          FastScatterPlot p1 = new FastScatterPlot();
          FastScatterPlot p2 = (FastScatterPlot) p1.clone();
          assertNotSame(p1, p2);
          assertSame(p1.getClass(), p2.getClass());
          assertEquals(p1, p2);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          float[][] data = createData();
          ValueAxis domainAxis = new NumberAxis("X");
          ValueAxis rangeAxis = new NumberAxis("Y");
          FastScatterPlot p1 = new FastScatterPlot(data, domainAxis, rangeAxis);
  
          ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          ObjectOutput out = new ObjectOutputStream(buffer);
          out.writeObject(p1);
          out.close();
  
          ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                  buffer.toByteArray()));
          FastScatterPlot p2 = (FastScatterPlot) in.readObject();
          in.close();
  
          assertEquals(p1, p2);
      }
  
      /**
       * Draws the chart with a <code>null</code> info object to make sure that
       * no exceptions are thrown.
       */
      @Test
      public void testDrawWithNullInfo() {
  
          float[][] data = createData();
  
          ValueAxis domainAxis = new NumberAxis("X");
          ValueAxis rangeAxis = new NumberAxis("Y");
          FastScatterPlot plot = new FastScatterPlot(data, domainAxis,
                  rangeAxis);
          JFreeChart chart = new JFreeChart(plot);
          /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                  null);
          //FIXME we should really be asserting a value here
      }
  
      /**
       * Populates the data array with random values.
       *
       * @return Random data.
       */
      private float[][] createData() {
          float[][] result = new float[2][1000];
          for (int i = 0; i < result[0].length; i++) {
              float x = (float) i + 100;
              result[0][i] = x;
              result[1][i] = 100 + (float) Math.random() * 1000;
          }
          return result;
      }
  
  }
  